Network mode supports mobile / Unicom / Telecom 4G/3G/2G. Note: the slot 1, 2 can switch to the main card and vice card arbitrarily, and can not use 2 Telecom cards at the same time.

The network frequency is TD-LTE:B39/B40/B41; LTE FDD:B1/B3; TD-SCDMA:B34/B39; WCDMA:B1/B2 (roaming) /B5 (roaming) /B8; CDMA:BC0; GSM:B2 (roaming) /B3/B8/B5 (roaming). Note: you can't support two CDMA cards at the same time; the networks and bands in each area may be different, depending on the local operators and where you are.